Re: [PATCH] MIPS: Use ARCH_USE_BUILTIN_BSWAP.

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On Tue, Sep 29, 2015 at 12:59:56PM +0100, Måns Rullgård wrote:

> Ralf Baechle <ralf@xxxxxxxxxxxxxx> writes:
> 
> > On Tue, Sep 29, 2015 at 12:28:55PM +0200, Ralf Baechle wrote:
> >
> >>    text    data     bss     dec     hex filename
> >> 3996071  155804   88992 4240867  40b5e3 vmlinux         ip22 baseline
> >> 3985687  159900   88992 4234579  409d53 vmlinux         ip22 + bswap patch
> >> 6913157  378552  251024 7542733  7317cd vmlinux         ip27 baseline
> >> 6878581  378552  251024 7508157  7290bd vmlinux         ip27 + bswap patch
> >> 5773777  268752  187424 6229953  5f0fc1 vmlinux         malta baseline
> >> 5773401  268752  187424 6229577  5f0e49 vmlinux         malta + bswap patch
> >
> > A still unexplained effect of this patch and the reason why I have not
> > committed this patch is the increase of the data size for the ip22
> > configuration by 4096 bytes.  There is no change in data size expected.
> > Also this affects only the test with ip22_defconfig not any of the others
> > I've tried.
> 
> Have you checked which object file(s) the increase comes from?

The data size difference is created in the final link stage.  data for
all inividual .o files even vmlinux.o; only vmlinux differs.

  Ralf




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